Sheet-metal pulley-housing.



PATENTED APR. 10, 1906.

P. DOSOH. v SHEET METAL PULLEY HOUSING.

APPLICATION FILED NOV. 3, 1905. v

PETER DOSCH, OF BRIDGEPORT, CONNECTICUT.

SHEET-METAL PULLEY-HOUSINGH Specification of Letters Patent.

Patented April 10, 1906,

Application filed November 3, 1905. Serial No. 285,726.

To all whom it may concern:

Be it known that 1, PETER Doson, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have inventedcertain new and useful Improvements in Sheet-Metal Pulley- Housings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to sheet-metal pulleyhousings; and it consists in the details of construction, which will be hereinafter fully set forth and then pointed out in the claim which concludes this application.

In the accompanying drawings, Figure 1. is an elevation illustrating the sheet metal blank from which my improved pulleyhous ing is constructed; Fig. 2, a plan of the blank as it appears after the housing has been drawn up therefrom; Fig. 3, a side elevation of the housing as it appears before it has been cut away to accommodate the pulley; Fig. 4, a plan view of the construction. shown at Fig. 3 Fig. 5, a side elevation of one form of my completed housing; Fig. 6, a perspective view of another form of my completed housing, and Fig. '7 aside elevation of the construction shown at Fig. 6 and showing the pulley within the housing.

Similar numbersof reference denote like parts in the several figures of the drawings.

A sheet-metal pulley-housing comprises a face-plate and a housing proper, and heretofore a sheet-metal pulley-housing has generally been constructed in three pieces the facelate and the two halves of the housing proper-and these parts have been fastened together in various ways.

In driving apulley in position within a mortise in a window-casing and also in the actual use of the housing with the pulley journaled therein the component parts of the housing frequently become sprung apart, thereby preventing the pulley from operating in a true vertical plane and causing various other obvious disadvantages.

The object of my present improvement is to provide a sheet-metal face-plate and pul- Icy-housing from a single integral piece of metal, thereby affording great strength and accuracy and overcoming the disadvantages above pointed out.

My improvement is formed by drawing the housing 1 from a sheet-metal blank 2, the blank being subsequently trimmed or out to form a proper face-plate 3, which latter is provided with perforations l for the accommodation of the usual fastening-screws whereby the face-plate is secured within a suitable mortise in the window casing. The sides of the housing are perforated, as shown at 5, (only one of the perforations being shown,) in order to provide'for the journaling of the pulley 6.

The closed portion of the housing may be cut away at the lower end, as shown at 7 in Fig. 5, in order to provide for the pulley-cord, or said portion may be entirely cut away, as shown at 8 in Figs. 6 and 7.

As a new article of manufacture, a sheetmetal pulley-housing formed of a single blank having a faceplate and an integral housing roper formed by drawing the same from said blank, the lower end of the closed portion of said housing proper being cut away in the form of an arc to provide a passage for the pulley-rope.

In testimony whereof I affix my signature in presence of two witnesses.

PETER DOSCH.

Witnesses:

F. W. SMITH, Jn, M. T. LONG-DEN. 

